Responsibilities
- Lead the design and implementation of GraphQL APIs to meet business requirements.
- Collaborate with cross‑functional teams to gather and understand API requirements.
- Utilise strong proficiency in Java to develop and maintain high‑quality software applications.
- Implement best practices for code quality, maintainability, and performance.
- Contribute to the overall system architecture and design decisions.
- Ensure scalability, reliability, and security of the software systems.
- Conduct thorough code reviews to maintain code quality and consistency.
- Provide guidance and mentorship to junior developers in the team.
- Integrate GraphQL APIs with existing systems and third‑party services.
- Develop and execute comprehensive unit and integration tests.
- Participate in Agile/Scrum development processes, including sprint planning, stand‑ups, and retrospectives.
Requirements
- In‑depth knowledge of Java programming language features, syntax, and constructs.
- Mastery of core Java concepts such as OOP (Object‑Oriented Programming), multithreading, and exception handling.
- Proficiency in the Spring Framework, including Spring Boot, Spring MVC, Spring Data, and Spring Security.
- Understanding of inversion of control (IoC) and dependency injection (DI) principles.
- Expertise in Hibernate or JPA for object‑relational mapping and database interaction.
- Familiarity with web development technologies such as HTML, CSS, and JavaScript and/or TypeScript.
- Experience with front‑end frameworks/libraries (e.g., Angular, React, or Vue.js).
- Knowledge of building and consuming RESTful APIs using frameworks like Spring REST or JAX‑RS.
- Strong understanding of GraphQL concepts and best practices.
- Proficient in working with relational databases like PostgreSQL and a good understanding of database design principles.
- Extensive experience with testing frameworks such as JUnit, Mockito and TestNG for unit testing and integration testing.
- Familiarity with build tools like Gradle for dependency management.
- Proficient in using a version control system like Git for source code management.
- Knowledge of CI/CD pipelines and tools like Bamboo.
- Understanding and application of design patterns for creating scalable and maintainable software.
- Expertise in writing concurrent and multithreaded applications, including synchronisation mechanisms.
- Awareness of security best practices in Java development, including secure coding principles and vulnerability mitigation.
- Ability to optimise code for performance and diagnose and resolve performance‑related issues.
- Experience with logging frameworks (e.g., SLF4J) and application monitoring tools.
- Strong collaboration skills and the ability to write clear and concise technical documentation.
- Familiarity with Agile development methodologies, particularly Scrum.
- Proficient in troubleshooting and debugging Java applications using various tools.
- Demonstrated commitment to continuous learning and staying updated with the latest Java and industry trends.
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